She was nicknamed the 'Red Volcano' because she had a quick, fiery temper.
For some reason, the Paramount bosses never really liked her so she was dropped from the studio.

Why she might not be annoying

On June 17, 1937, Jeanette married her only true love, actor Gene Raymond, in a spectacular Hollywood fashion - it was the best attended wedding of that decade. It was a loving marriage that lasted 28 years till her death in 1965.
On May 30, 1953, she was given a honorary degree, 'Doctor of Music' from Ithaca College, New York.
Screen Actors Guild awarded Jeanette the 'Best Performance Award', for Maytime (1937).
She still has a large fan club, 'The Jeanette MacDonald International Fan Club', which meets every year in Los Angeles to pay tribute to the great star.

For 2019, as of last week, Out of 5 Votes: 60.0% Annoying
In 2018, Out of 6 Votes: 66.67% Annoying
In 2017, Out of 43 Votes: 76.74% Annoying
In 2016, Out of 30 Votes: 90.0% Annoying
In 2015, Out of 30 Votes: 63.33% Annoying
In 2014, Out of 110 Votes: 63.64% Annoying
In 2013, Out of 36 Votes: 61.11% Annoying
In 2012, Out of 80 Votes: 70.0% Annoying
In 2011, Out of 57 Votes: 49.12% Annoying
In 2010, Out of 2539 Votes: 72.04% Annoying
In 2009, Out of 147 Votes: 49.66% Annoying
In 2008, Out of 215 Votes: 52.09% Annoying
In 2007, Out of 1593 Votes: 50.03% Annoying
In 2006, Out of 985 Votes: 43.05% Annoying
In 2005, Out of 452 Votes: 45.35% Annoying
In 2004, Out of 492 Votes: 49.39% Annoying
In 2003, Out of 540 Votes: 55.74% Annoying
In 2002, Out of 1448 Votes: 67.40% Annoying